Origin
Shazam Robot was built by the Marvel Family to transport nitroglycerin for the Naughton Nitro Co.
Creation
Shazam Robot was created by Otto Binder in 1946, Marvel Family Comics #5.
Major Story Arcs
Uncle Dooley received a letter from the Naughton Nitro Co, about solving a problem of driving trucks carrying nitroglycerine.
With the help of the other members of the Marvel Family they build a robot that is super-strong, super-resilient, and sweet personality. The robot can even withstand a punch from Captain Marvel.
Shazam inc. delivers the Robot to the company. The Naughton Company orders Shazam Robot to drive a truck to the oil fields. The truck jolts when passing a rock, and explodes. Shazam Robot resists the explosion, but his personality is changed by the impact and he becomes extremely violent.
The marvel family fights him before he destroys the oil fields. But he is super resistant, and can get him out of the place.
Uncle Dooley manages to open the chest panel and change the wiring and gets him back to his sweet personality. He then gets back to driving a truck with nitro.